It should just glide down the piece almost purposely (sort of slow and controlled, but not too slow). Practice a bit and you will get the hang of it. Hold a piece of known silver on the tip of your finger and balancing it, take another piece and give it a little tap.
You should hear a nice bell ringing tone. If it clinks it probably isn't real. I post unique silver pieces regularly and at competitive prices! This item is in the category "Coins & Paper Money\Bullion\Silver\Bars & Rounds". The seller is "militarychad" and is located in this country: US.
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